What method is used to separate a mixture containing the following liquids? methanol (boiling point $64.5\,^{\circ}\text{C}$) ethanol (boiling point $78.5\,^{\circ}\text{C}$) propan-1-ol (boiling point $97.2\,^{\circ}\text{C}$) butan-1-ol (boiling point $117.0\,^{\circ}\text{C}$)
- Acrystallisation
- Bevaporation
- Cfiltration
- Dfractional distillation